What are the current applications of Semipermeable Membrane Device (SPMD) technology?
• determination of pollutant sources and relative levels at different locations • estimation of ambient dissolved or vapor phase chemical concentrations (integrative or equilibrium) • in situ biomimetic concentration of ambient bioavailable chemicals for bioassay and immunoassay • estimation of organism exposure or bioconcentration potential • analytical enrichment of contaminant residues • toxicity identification evaluation (TIE) procedures